The links below provide an overview of the Common Core Standards for first grade:
English-Language Arts: http://www.thecurriculumcorner.com/thecurriculumcorner123/wp-content/pdf/ican/checklistanchorstandards.pdf
Math: http://www.thecurriculumcorner.com/thecurriculumcorner123/wp-content/pdf/ican/Checklist%20Standards%20for%20Mathematical%20Practice.pdf